[Bug middle-end/47559] New: ICE: verify_stmts failed: statement marked for throw, but doesn't with -fnon-call-exceptions and noexcept

["zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47559

           Summary: ICE: verify_stmts failed: statement marked for throw,
                    but doesn't with -fnon-call-exceptions and noexcept
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: zsojka@seznam.cz


Created attachment 23189
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23189
reduced testcase (from g++.dg/opt/pr46864.C)

Compiler output:
$ gcc -O -fnon-call-exceptions testcase.C -std=c++0x
testcase.C: In function 'void foo(int*)':
testcase.C:1:6: error: statement marked for throw, but doesn't
k__lsm.1_5 = 0;

testcase.C:1:6: internal compiler error: verify_stmts failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


(gdb) bt
#0  error (gmsgid=0x12aaf08 "statement marked for throw, but doesn%'t") at
/mnt/svn/gcc-trunk/gcc/diagnostic.c:747
#1  0x0000000000a385e3 in verify_stmt () at
/mnt/svn/gcc-trunk/gcc/tree-cfg.c:4175
#2  verify_stmts () at /mnt/svn/gcc-trunk/gcc/tree-cfg.c:4382
#3  0x0000000000b4d92d in verify_ssa (check_modified_stmt=1 '\001') at
/mnt/svn/gcc-trunk/gcc/tree-ssa.c:878
#4  0x00000000009393f9 in execute_function_todo (data=<value optimized out>) at
/mnt/svn/gcc-trunk/gcc/passes.c:1245
#5  0x0000000000939aed in execute_todo (flags=1) at
/mnt/svn/gcc-trunk/gcc/passes.c:1276
#6  0x000000000093c0cf in execute_one_pass (pass=0x17886a0) at
/mnt/svn/gcc-trunk/gcc/passes.c:1584
#7  0x000000000093c395 in execute_pass_list (pass=0x17886a0) at
/mnt/svn/gcc-trunk/gcc/passes.c:1616
#8  0x000000000093c3a7 in execute_pass_list (pass=0x1788760) at
/mnt/svn/gcc-trunk/gcc/passes.c:1617
#9  0x000000000093c3a7 in execute_pass_list (pass=0x17879e0) at
/mnt/svn/gcc-trunk/gcc/passes.c:1617
#10 0x0000000000a7eab6 in tree_rest_of_compilation (fndecl=0x7ffff5d39700) at
/mnt/svn/gcc-trunk/gcc/tree-optimize.c:422
#11 0x0000000000c46302 in cgraph_expand_function (node=0x7ffff5d48000) at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1563
#12 0x0000000000c48a0a in cgraph_expand_all_functions () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1622
#13 cgraph_optimize () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:1882
#14 0x0000000000c48f8a in cgraph_finalize_compilation_unit () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1083
#15 0x00000000005b35fa in cp_write_global_declarations () at
/mnt/svn/gcc-trunk/gcc/cp/decl2.c:3977
#16 0x0000000000a27a34 in compile_file (argc=16, argv=0x7fffffffdad8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:591
#17 do_compile (argc=16, argv=0x7fffffffdad8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1874
#18 toplev_main (argc=16, argv=0x7fffffffdad8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1937
#19 0x00007ffff65f1bbd in __libc_start_main () from /lib/libc.so.6
#20 0x00000000004f9dd5 in _start ()


Tested revisions:
r169440 - crash
4.5 r168785 - doesn't know noexcept